Why bit.ly is Better than tinyurl.com

bit.ly and tinyurl.com both offer free URL redirection service and help to turn a long URL into a much shorter one, but bit.ly also offer real-time link tracking.
Somebody says, bit.ly = TinyURL + Google Cache + Web Stats + RSS Feeds.

bit.ly allows users to shorten, share, and track links (URLs). Reducing the URL length makes sharing easier. bit.ly can be accessed through our website, bookmarklets and a robust and open API. bit.ly is also integrated into several popular third-party tools such as Tweetdeck. A more full list of third party tools can be found on the bit.ly blog. Unique user-level and aggregate links are created, allowing users to view complete, real-time traffic and referrer data, as well as location and metadata. Tracking stats are available after users shorten their long links with bit.ly by clicking on the “Info+” link on bit.ly, or just adding a “+” sign to the end of any bit.ly link (for example, http://bit.ly/n0og+).